Tank-closure



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Specification of Letters Patent. Patented Jenil 25, 1921.

Application ed September 3Q, 1920. Serial No. (213,685.

fl 10 all wlw/m t may concern.' l

Be 1t known that l, JosnrH A. WARREN, a citizen of the United States,residing and State of New Hampshire, have invented certain new anduseful Improvements 1n Tank-Closures; and l do declare the follow-i ingto be a full, clear7 and exact description of the inventioin such aswill enable others skilled in the art to which it appertains to make anduse the same.

T his invention relates broadly to improve ments in closures, and it hasmore particular reference to an improved closure especially, althoughnot necessarily, designed 'for use in connection with automobilegasolene storage tanks.

(lne object of the invention is to provide a self-closing Yvalve t'ortanks or other containers in which volatile liquids such as gasolene arestored, the valve beinp automatically seated by spring pressure, andwhen opened and released, immediately returnable to its vnormal closedposition to ei'ect an eX- tremely tight closure; the construction andarrangement oi' the closure being such as to permit it to yieldl andpermit the escape of excessive gas from the tank7 thus sewing as 4asafety valve.

Another object oi the invention is to provide a closure which iscomposed of comparatively few simple and inexpensive parts which are socorrelated that they insure effective results and permit easy and readyunseating of the valve when the 'tank is being; filled.

Other objects and advantages of the invention will be apparent duringthe course of the following description.

In the accompanyingr drawings finining.,r a part of this speciiicationand in which like numerals arc employed to. designate like partsthroughout the same: j

Figure l is an elevational view of a device constructed in accordancewith my invention, the same being shown in the manner in Awhich it isassociated with the filling open in in a gasolene tank.

1ig. 2 is a sectional view thereof which more clearly discloses theconstruction and arrangement. l I f Fig. 3 is a View similar to Fig. 2showlng the valve in open position to permit the tank to be filled.

Figs. 4 and 5v are sections taken'on the lines-4 4A and .55 respectivelyof F 1g; 2.

at l Manchester, in the county of Hillsborough' By referring to thedrawings,y it willibe seen that the numeral l designates a tank providedwith a filling lopening 2 which under ordinary circumstances is closedby means of a screw-cap. It is my intention to do awaywith thisscrew-cap land substitute my novel automatically spring-closed valvedevice. This device .comprises a closure 3 includingr a channel portion4f to accommodate the insertion oi a yieldable packing.'- ring Il whichengages the tank in the marin ner disclosed to insure a tight closing.In

addition to this channel portion, this valve A also includes a dependingpart 5 which. ex tends through the opening 2 and into the interior ofthe tank. Suitable air vents 6 will,I of course7 be provided. Disposedin the tank adjacent the opening 2 .isa substantially rectangular plate7 which is provided. with a central opening registering with the opening2, the portion ofthe plate surroundingy this opening being bent inwardlyto provide an endless flange 8 which serves a purpose to be hereinafterdescribed. This plate is provided with combined anchoring andanti-slipping means being preferably in the form of spurs 9 which areformed by simply bending the corners of the plate iaterallyto bringthem' into engagement. with the tank. It is to be noted that'the platere' ferred to is of such a' width that' it may be turned endwise and thedevice easily in-` serted through the hole in the tank. l

As before indicated, the valve 3 is selfclosingr 'and it is here shownasbeing closed by means ofa coiled spring l0 which surrounds the vflange8 .at one o its ends and hears against the plate 7,. it being connected.with the valve through the medium of flexible connectors in the form ofchains l1'- which are connected at their inner ends to a channel member12 1n Which the inner end of said coiled s ring is seated.y With thismal position by means of the spring and' v E i ,eeeeee sure device areso simple fluit the voet oi manufacture of lle device is comparativelysmall. 4 l

These and oeher advantages and features of my invention, have no doubl7become npparent from' J@he foregoing dcecripiion.

A careful consideration of ehe i'oregoing description taken inconnection with lie scconlpallyinge,` drawings, thought ce be suffieientto enable persons skilled in art to' which this invention relates, toobtain a. clear underelanding'oi ehe seine and the manner in which itoperates. For this ree son, a more lengthy description is deemedunnecessary.

Since' probably lie heet results may be lobcaned with the constructionand arrangement hereinv flieclcsed und described this construction. andarrangement teire'nnxs the preferred embodiment of my niven'ion.However, I wish it to he understood that minor changes in @heshepkeyf-eize, and arran'genieniJ ci' parte muy be resored 'to with Theparte cmout departing 'roin che spirit' of the inven- "tion or the scopeof-the subjoned claim.

claim: l .y In combination a container provided with e lling'aopening, aSubstantially conical valve closing and extending through said opening,a coiled spring for closing and retaining the valve closed, achannel-shaped ring in "the,- contniner receiving the inner end of saidspring, said ring carrying opposed hooks, chains connecte-d to the valve:ind said hooks, and n substantially square flat plate of a size topermit; it to be inserted tl'nough the aforesaid filling opening', saidplate constituting;f an abutment for the spring' and being.r disposedwithin the container and arranged between the upper end of the springand the valve, being centrally aperjtured' to permit free passage of theHuid therethrough and also permitting passage of Athe pointed end oi thevali'e therethrough,

said opening being surrounded by u laterally downturned 'flangeextending into the upper end of the spring to prevent lateraldisplacement of the latter,4ghe corners of the plate being beni,laterally up to provide spurs which engage the adjacent' wall of the conminer for retaining the plate in position,

said spring serving the additional function of insuring an eectiveengagement of the spurs with the container Wall. v

in testimonyT whereof here hereunto set my hand.

roepen iivllennn

